Claude
Anthropic · General AI · Writing · Research · Coding · Agents
Anthropic's assistant, known for strong writing, long-context document work and coding. Projects hold persistent instructions and files; Styles control voice; Claude Code brings it to the terminal.
Best for: Long documents, careful reasoning and writing; Projects carry persistent instructions.
| Models | Claude model family (multiple tiers) |
|---|---|
| Free plan | Yes |
| Paid plans | Paid subscriptions add stronger models and higher limits |
| API | Yes (Anthropic API) |
| Custom instructions | Yes. Project instructions, personal preferences, and custom Styles |
| Memory | Yes, memory features on recent versions |
| File upload | Yes |
| Web search | Yes |
| Context window | Very large, a signature strength |
| Apps | Web · iOS · Android · desktop · Claude Code (terminal) |
Facts last reviewed 2026-08-10, capabilities and plans change frequently; verify on the official site before relying on a detail.
Models, limits and pricing
| Current models | Claude Fable 5, most capable widely released model (claude-fable-5) Claude Opus 5, complex agentic coding and enterprise work (claude-opus-5) Claude Sonnet 5, best balance of speed and intelligence (claude-sonnet-5) Claude Haiku 4.5, fastest, near-frontier (claude-haiku-4-5) |
|---|---|
| Context window | 1M tokens (Fable 5, Opus 5, Sonnet 5); 128k max output |
| Parameters | Not disclosed most closed frontier models do not publish parameter counts; we do not repeat rumored figures. |
| Modalities | Text + image in; text out; vision and multilingual on all current models |
| Consumer pricing |
|
| API pricing | Claude Fable 5: $10 / 1M input, $50 / 1M output (Opus 5: $5 / $25) |
Pricing and model line-ups verified 2026-08-11 from source 1 ↗ · source 2 ↗. These change often. The vendor page is authoritative.
Notable
- Projects: persistent instructions + knowledge files
- Styles: reusable writing-voice presets, a natural home for your writing profile
Agents that work well here
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